Concrete-mixer



A. L. HALE.

CONCRETE MIXER.

APPLICATION FILED JULY 14. 1919.

1,341,31 6. Patented May 25, 1920.

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gnuenkox L. HAL E.

CUNQRETE MIXER.

' APPLICATlON FILED JULY I4, 1919. 1,341,316; Patented y 25, 1920.

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fld r6445 v172262 UNITED STATES ALFRED L. HALE, 0F WILLIAMSTOlI, MICHIGAN.

CONCRETE-MIXER.

Specification of Letters Patent.

Patented May 25, 1920.

Application filed July 14, 1919. Serial No. 310,585.

To all whom it may concern:

Be it known that I, ALFRED L. HALE, c tizen of the United States, residing at Villiamston, in the county of Ingham and State oi Michigan, have invented certain new and use t'ul Improvements in Concrete-Mixers, oi which the following is a specification.

This invention has relation to concrete mixin machines and has for an object to provice a machine for this purpose which is simple and inexpensive in construction.

Another object of the invention is to pro vide a concrete mixer of a portable character whereby the material may be placed in the receptacle of the mixer at the place of storage of the materials, and the mixer then transported to the work, the ingredients be ing thoroughly mixed during transportation.

A still further object of the invention is to provide a concrete mixer in the natureof a receptacle mounted on suitable supporting wheels, whereby the materials may be placed in the receptacle and the mixer drawn along the ground, the receptacle turning over and over during movement, thereby thoroughly mixing the materials.

A still further object of the invention is to provide a concrete mixer including a wheel supported receptacle in which one wheel is secured to the receptacle whereby the receptacle may turn over during travel of the mixer over the ground, and means for engaging the ground to raise the secured wheel to permit the receptacle to turn freely to invert the same to discharge its contents.

Another object of the invention is to provide means in a concrete mixer of the char acter above described for introducing water into the receptacle during movement of the mixer and after the solid ingredients have been entered thereinto and the receptacle sealed.

In addition to the foregoing, invention comprehends improvements in the details of construction and arrangement of parts to be hereinafter described and particularly pointed out in the appended claim.

In the accompanying drawings, in which similar and corresponding parts are designated by the same characters of reference throughout the several views in which they appear:

Figure l is a view in side elevation of a.

concrete mixing machine constructed in ac cordance with my invention.

9. is a view thereof in top plan.

Fig.3 is a view thereof in rear elevation with a portion of the receptacle broken away.

Fig. l is a detail view of a portion of the receptacle and wheel.

Fig. 5 is a detail view in perspective of a portion of the mechanism for elevating the mixer, and

Fig. 6 is a detail View in perspective of another portion thereof.

With reference to the drawings, 10 indicates a receptacle which may be a barrel having its bilge perforated at opposite points to permit the insertion of an axle which consists of two alined sections 11 and 12, the first mentioned being of tubular ma terial having their meeting ends located centrally of the barrel and connected by means of a T-coupling 13. The section '11 is slightly longer than the other and is bent upward as at 14 to extend into a tank 15 which it supports. The receptacle is supported on a pair of wheels 16 and 17, located at opposite sides thereof and surrounding the axle. The spokes of the wheel 17 are secured to the barrel by means of bolts 1.8 having hook shaped terminals which engage the spokes, the threaded ends entering the barrel so that nuts 19 may be subsequently applied thereto. A. pair of thills 20 are provided for attachment to the axle at points beyond. the wheels, through the medium of blocks 21, apertured to receive the axle and bifurcated as at 22 to engage oppo' site sides of the thills as shown in Fig. 4. The thills are braced by means of a connecting bar 23 which also supports a swinglctree 24L. Mounted upon the bar 23 at a point adjacent one end thereof is a brake bar 25, rotatable about a bolt 26 whereby the free end of the bar may be brought into engagement with the periphery of the wheel 17. To this end a brake lever 27 is fulcrumed on the axle and is connected to the brake bar by means of a link 28. Elevating levers 29 are also fulcrumed on that end of the axle which projects beyond the wheel 17 and mounted on the levers adjacent their fulcrums are castings or the like consisting of base plates 30 having upstanding, apertured ears at each end as indicated at 31, the inner ones of which being somewhat shorter than the outer ones, to compensate for the inclination of the axle when disposed at an incline. Depending from the elevating levers are wheel supporting members in the form of spaced bars 32 having their lower ends slotted as at 40 for the reception of the axle 34 of an elevating wheel 35 which is between the members of the bifurcated portion. The bars depend vertically and are bent at right angles at their upper ends to form attaching portions 36 for pivotal engagement between the ears 31 of the castings of the elevating levers. The extremities of the attaching portions 36 are apertured to permit pins 33 to enter the same and the said. ears. Bolts 38 or the like project through the bars 32, and brace bars 39 are provided having apertures therein to receive the bolts -11 and their other ends pivotally connected to an adjacent thill. A removable cover plate is provided for one end of the receptacle to permit the same to be readily filled and is held in place by any suitable means.

It is to be noted that when the brake is released and the elevating wheel 35 in a raised position the levers 27 and 29 will be directed forwardly and will lie in a horizontal plane in contiguous relation to one of the thills. When the brake is to be applied the lever 27 is thrown upward and then rearwardly bringing the same to rest in a horizontal plane in an opposite direction, thereby engaging the brake bar 25 against the wheel 17, arresting the travel of the mixer over the ground. To elevate the mixer the other levers 29 are moved in a similar manner from their normal position, whereupon the elevating wheel 35 will be lowered and pressed into engagement with the ground with the consequence that the supporting Wheel 17 is elevated out of engagement with the ground. When the elevating lever 29 is brought to its full operative position in a horizontal plane and directed rearwardly, it will be obvious that the bent portions 36 of the wheel supporting bars 32 will be disposed beneath the lever (instead of above as in their normal position) and the pins 33 located forwardly of the center of the axle. The lever may then be released and the mixer will be retained in its elevated position.

In use, the dry materials are introduced directly into the receptacle and the cover applied. Water to the requisite proportions is then placed in the tank 15 from whence it fiows through the section 11 of the axle, through the T-coupling and into the barrel. When the wheel 17 is in engagement with the ground and the mixer caused to travelthe barrel will be turned over and over and the contents thus thoroughly mixed. To discharge the barrel it is but necessary to elevate the mixer by means of the elevating lever in the manner stated, and the barrel is thus supported to turn freely which may be done by grasping and rotating the said wheel 17.

In order to actuate the brake lever during a predetermined distance of the travel of the levers 29, and arm 29 is secured to said lever and is provided with angularlv disposed extensions which engage opposite sides of one of the levers as the same is moved in opposite directions. The aforesaid levers have a handle 29 secured to their outer ends in such manner that they will remain in a rigid relation to one an other.

While I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I there fore reserve the right and privilege of changing the form of the details of construction and arrangement of the correlated parts without departing from the spirit of the invention and the scope of the appended claim.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

In combination in a device of the character described including an axle, two wheels and a pair of thills, a brake bar pivotally secured at one end to one of said thills a brake lever fulcrumed on said axle, a link extending from said lever to said brake bar, two elevating levers pivotally secured to said axle on opposite sides of one of said thills, an upstanding ear lixed to the end of said elevating levers, :1 rec tangular bar depending from each of said ears, an elevating wheel held to said rectangular bar, a brace bar having its ends secured to one 01": said. thills and said rectangular bar, and an arm fixed to one of said levers having outstanding ends serv ing as a stop to limit the movement of said brake lever, as and for the purpose set forth.

In testimony whereof I afiix my signature.

ALFRED L. HALE. 

